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Inventories (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Inventories      
Finished goods $ 1,267 $ 1,396  
Work-in-process 27,212 41,619  
Spare parts and supplies 89,708 86,825  
Inventory gross 118,187 129,840  
Provision for impairment of inventory (29,842) (30,774)  
Finished goods:      
Current portion 88,345 86,264  
Inventories 0 12,802  
Inventories 88,345 99,066  
Sociedad Minera Cerro Verde S.A.A.      
Inventories      
Materials and supplies 411,656 369,324  
Work-in-process 200,969 170,669  
Provision for impairment of inventory (7,668) 0 $ 0
Finished goods:      
Copper concentrate 23,012 9,734  
Copper cathode 10,976 15,708  
Molybdenum concentrate 3,598 1,776  
Current portion 650,211 567,211  
Inventories 287,218 323,828  
Inventories $ 937,429 $ 891,039